APA (7th ed.) Citation

Project Gutenberg & Keats, J. (2007). Keats: Poems Published in 1820. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Project Gutenberg and John Keats. Keats: Poems Published in 1820. Salt Lake City: Project Gutenberg Literary Archive Foundation, 2007.

MLA (9th ed.) Citation

Project Gutenberg and John Keats. Keats: Poems Published in 1820. Project Gutenberg Literary Archive Foundation, 2007.

Warning: These citations may not always be 100% accurate.